Bearing Locknut Socket - 3 7/8 In - 8 Pt Features: Truck wheel bearing locknut socket has 3/4" square drive opening.Permits the use of an extension & torque wrench to tighten the locknut as required.Locknut removal & installation is simple, even when wide rim wheels are involved.A long extension may be attached to the socket to provide the necessary clearance.Socket is made of high-strength steel.Opening resists "rounding out." ...